drop table if exists `admin`;
drop table if exists user;
drop table if exists book;
drop table if exists document;
drop table if exists note;
drop table if exists record;
drop table if exists typetable;
drop table if exists author;
drop table if exists book_author;
drop table if exists book_type;
drop table if exists user_stat;
create table `admin`
(
    passwd varchar(100) NOT NULL
);
-- insert into `admin` (`passwd`) values('');
-- sqlite default no foreign key
PRAGMA FOREIGN_KEYS=ON;

-- user
drop table if exists user;
create table user
(
user_id         INTEGER         PRIMARY KEY AUTOINCREMENT,
user_name       varchar(100)    NOT NULL UNIQUE,
user_mail       varchar(100)    NOT NULL UNIQUE,
user_passwd     varchar(100)    NOT NULL,
user_limit      int             NOT NULL,
user_regtime    timestamp       NOT NULL DEFAULT CURRENT_TIMESTAMP
);
-- insert into user (`user_name`, `user_mail`, `user_passwd`, `user_limit`) values ('catfood', 'a@a.com', 'lil0', 100);

-- book
drop table if exists book;
create table book
(
book_id         INTEGER         PRIMARY KEY AUTOINCREMENT,
book_name       varchar(100)    NOT NULL,
book_isbn       varchar(100)    DEFAULT NULL,
book_publisher  varchar(100)    DEFAULT NULL,
book_pubdate    datetime        DEFAULT NULL,
book_lang       varchar(100)    DEFAULT NULL,
user_id         int             NOT NULL,
CONSTRAINT `fk_book_user_id` FOREIGN KEY (`user_id`) REFERENCES user(`user_id`) ON DELETE RESTRICT
);

-- insert into book (`book_name`, `book_isbn`, `book_publisher`, `book_pubdate`, `book_lang`, `user_id`) values ('mom pig', 'emm', NULL, NULL, 'CN', 1);

-- document
drop table if exists document;
create table document
(
doc_id      INTEGER         PRIMARY KEY AUTOINCREMENT,
doc_name    varchar(100)    NOT NULL,
doc_url     varchar(100)    NOT NULL,
doc_size    int             NOT NULL,
doc_date    timestamp       NOT NULL DEFAULT CURRENT_TIMESTAMP,
doc_type    varchar(100)    NOT NULL,
book_id     int             NOT NULL,
user_id     int             NOT NULL,
CONSTRAINT `fk_document_user_id` FOREIGN KEY (`user_id`) REFERENCES user(`user_id`) ON DELETE RESTRICT,
CONSTRAINT `fk_document_book_id` FOREIGN KEY (`book_id`) REFERENCES book(`book_id`) ON DELETE RESTRICT
);
create index `idx_doc_name` on document(doc_name);

-- insert into document (`doc_name`,`doc_url`,`doc_size`,`doc_type`,`book_id`,`user_id`) values ("a.pdf", 'c:/shit/a.pdf', 10, 'pdf', 1, 1);

-- note
drop table if exists note;
create table note
(
note_id         INTEGER         PRIMARY KEY AUTOINCREMENT,
note_name       varchar(100)    NOT NULL,
note_date       datetime        NOT NULL DEFAULT CURRENT_TIMESTAMP,
note_content    text            NOT NULL DEFAULT '',
book_id         int             NOT NULL,
user_id         int             NOT NULL,
CONSTRAINT `fk_note_user_id` FOREIGN KEY (`user_id`) REFERENCES user(`user_id`) ON DELETE RESTRICT,
CONSTRAINT `fk_note_book_id` FOREIGN KEY (`book_id`) REFERENCES book(`book_id`) ON DELETE RESTRICT
);
create index `idx_note_name` on note(note_name);

-- insert into note (`note_name`, `note_content`,`book_id`,`user_id`) values ('long ago', 'well, nothing', 1, 1);

-- record
drop table if exists record;
create table record
(
record_time timestamp       PRIMARY KEY DEFAULT CURRENT_TIMESTAMP,
record_type varchar(10)     NOT NULL,
doc_URL     varchar(100)    NOT NULL,
user_id     int             NOT NULL
);

-- insert into record (`record_type`,`doc_URL`,`user_id`)
    -- values ('write', 'c:\a.pdf', 1);

-- typetable
drop table if exists typetable;
create table typetable
(
type_id     INTEGER         PRIMARY KEY AUTOINCREMENT,
type_name   varchar(20)     NOT NULL UNIQUE
);
-- insert into typetable (`type_name`) values ('sjot');

-- author
drop table if exists author;
create table author
(
author_id     INTEGER         PRIMARY KEY AUTOINCREMENT,
author_name   varchar(50)     NOT NULL
);
create index `idx_author_name` on author(author_name);
-- insert into author (`author_name`) values ('alabama.shit');

-- book_author
drop table if exists book_author;
create table book_author
(
author_id   int NOT NULL,
book_id     int NOT NULL,
PRIMARY KEY (`author_id`, `book_id`),
CONSTRAINT `fk_ba_book_id` FOREIGN KEY (`book_id`) REFERENCES book(`book_id`) ON DELETE RESTRICT,
CONSTRAINT `fk_ba_author_id` FOREIGN KEY (`author_id`) REFERENCES author(`author_id`) ON DELETE RESTRICT
);
-- insert into book_author values (1,1);

-- book_type
drop table if exists book_type;
create table book_type
(
type_id  int    NOT NULL,
book_id  int    NOT NULL,
PRIMARY KEY (`type_id`, `book_id`),
CONSTRAINT `fk_bt_book_id` FOREIGN KEY (`book_id`) REFERENCES book(`book_id`) ON DELETE RESTRICT,
CONSTRAINT `fk_bt_type_id` FOREIGN KEY (`type_id`) REFERENCES typetable(`type_id`) ON DELETE RESTRICT
);
-- insert into book_type values (1,1);

-- user_stat
drop table if exists user_stat;
create table user_stat
(
user_id         int PRIMARY KEY,
user_limit      int NOT NULL,
user_usedspace  int NOT NULL DEFAULT 0,
user_bookcount  int NOT NULL DEFAULT 0,
user_doccount   int NOT NULL DEFAULT 0,
user_notecount  int NOT NULL DEFAULT 0,
CONSTRAINT `fk_user_stat_user` FOREIGN KEY (`user_id`) REFERENCES user(`user_id`) ON DELETE RESTRICT,
CONSTRAINT `ck_usedspace` CHECK (user_usedspace <= user_limit)
);
-- insert into user_stat values (1,1,1,1,1,1);